package com.itheima.inetaddress;

import java.util.UUID;

public class Demo12 {
    public static void main(String[] args) {
        UUID uuid = UUID.randomUUID();
        String s = uuid.toString().replace("-","");
        System.out.println(s);//b15fb6b745ca40468438dca4e4e3e736
    }
}
